The standards of telecom technologies

Asynchronous Transfer Mode (ATM)

ATM has been developed as an answer to many of the most pressing needs for modern Telecommunications. Designed especially to carry large amounts of information at high speeds, ATM caters to the wide variety of telecommunications traffic that we encounter nowadays, such as voice, data, video and multimedia.

Market Potential and Expectations
ATM is a ‘transport and switching technology’ - a means of moving information efficiently and reliably from one place to another. One of its particular strengths is that it can be used to satisfy many different types of telecommunication needs. ATM has been defined as the “glue” that interconnects heterogeneous networks into a single, larger internetwork, seamlessly connecting various link and network layers. ATM deployment has increased dramatically in the 1990s, and is one of the favoured transport technologies for the provision of IP services. At the forefront of the movement toward efficient communication, the demand for ATM accelerates.
The market for ATM based products and services in business communications may be divided into three segments; Public Network Infrastructure (including the residential broadband market), Local Area Networks (LAN) and Wide Area Networks (WAN). Existing market structures, rate of new technology deployment and the regulatory environment determine the segmentation. ATM was conceived as a solution for use within WANs. But it was soon realized that the benefits of ATM could also be exploited in LANs, which typically serve business premises, conveying mainly data between computers, printers, manufacturing machinery and the like.
Slightly more than half of ATM world-wide equipment revenue is now generated in the U.S., but the balance will shift toward non-U.S. markets during the next several years. Outside the U.S., ATM is more generally accepted as the standard for broadband networking. Europe is the most significant non-U.S. regional market for ATM equipment, followed by South America, Canada and Asia/Pacific.

The Evolution
ATM is achieving major global acceptance within the information systems and telecommunications industries. Since the technology has been designed from the outset to be scaleable and flexible in terms of geographical distance, number of users, access and trunk bandwidths (currently the speeds range from megabits to gigabits), the intrinsic flexibility and scalability assures that ATM will be important for a long time. ATM will have an increasingly important role as the "communications explosion" continues, typified by massive growth in mobile and multimedia communications, as well as intensified use of the Internet and electronic commerce.

ATM standard development
ETSI’s contribution to the collaborative work on ATM has centred mainly on the development of signalling standards for implementations of ATM in Europe, on the ATM Application Layers and on network operational aspects, especially in the context of Broadband ISDN (B-ISDN). ETSI leads the world in its studies of testing practices and specification techniques, particularly in relation to switching and signalling protocols.
This work was carried out notably in ETSI Project EASI (European ATM Services Interoperability) and Technical Committee SPAN (Services and Protocols for Advanced Network). In May 2000, ETSI Project EASI was closed and remaining work was undertaken by ETSI TC TMN (Telecommunications Management Network) and ETSI TC SPAN.

Broadband Radio Access Networks (BRAN)

Broadband Radio Access Networks provide telecommunications services in the middle ground between mobile systems and the wired access world.

Market Potential and Expectations
BRAN wireless systems are intended to be highly performing, quick to set up and competitive alternatives to wire-based access systems for business and domestic access applications. The intrinsic flexibility allows businesses, hospitals, airports and the like to quickly reconfigure their telecommunications access arrangements according to their changing needs.
The first ETSI BRAN standard is HIPERLAN/1. It has been designed to provide high-speed communications (20 Mbits/s) between portable devices in the 5 GHz range. It allows the creation of flexible wireless data networks, without existing wired infrastructure. In addition it can be used as an extension of a wired Local Area Network (LAN). The support of multimedia applications is possible.

The Evolution
Standards are being developed for three types of Broadband Radio Access Networks:

. HIPERLAN/2 is the new high performance 5 GHz radio technology being developed within ETSI. HIPERLAN/2 is a multi-purpose technology that provides high-speed (up to 54 Mbit/s at Physical layer) portable local access and connectivity for next generation mobile communications in corporate, public and home environments. It brings seamless connectivity between communication devices and networks including 3rd Generation cellular systems and provides mobility, flexibility and Quality of Service for future multimedia and real-time video applications. The first release of the HIPERLAN/2 standard was published end of 1999.

HIPERACCESS will provide outdoor, high-speed (25 Mbit/s typical data rate) radio access, typically for fixed radio connections to customer premises, and will also be capable of supporting multimedia applications. Distribution within the premises might be by means of HIPERLAN/2 or some other technology. Using HIPERACCESS, an operator will be able to rapidly roll out a wide area broadband access network to provide connections to households and small businesses. However, HIPERACCESS may also be of interest to large organizations wishing to serve a campus and its surroundings, as well as to operators of large physical facilities such as airports, universities, hospitals and harbours. Ranges of up to 5 km are foreseen. The core HIPERACCESS standards will be published in the 3rd quarter of 2001.

HIPERLINK will provide very high speed (up to 155 Mbit/s data rate) radio links for static interconnections. A typical use would be the interconnection of HIPERACCESS networks and/or HIPERLAN Access Points into a fully wireless network.

The ETSI Project BRAN is working on radio systems to meet the new requirements of the information age. It will develop new standards for a new generation of networks that will provide transparent broadband radio access with bitrates of 25 Mbit/s or more and operating in either licensed or licence-exempt radio spectrum.
More information about ETSI Project BRAN can be found on

DECT (Digital Enhanced Cordless Telecommunications)

DECT™, is a radio technology specified by ETSI which has become a world-wide success. The technology provides flexible digital radio access cordless communications for use in residential, corporate and public environments.
Market Potential and Expectations
Designed for short-range use as an access mechanism to the main networks, DECT offers cordless voice, fax, data and multimedia communications, wireless local area networks and wireless PBX. It thus has applications in the factory, office, home and public areas, such as stations, airports and exhibition halls. For network operators DECT is also a cost-effective and flexible alternative to conventional cable/fibre connections into customers' premises, by providing "Wireless Local Loop".
Frequency bands have been made available for DECT in more than 100 countries across 5 continents. DECT services are compatible with GSM and ISDN and dual-mode DECT/GSM handsets are available. With a total of over 70 million terminals shipped by the end of 2000 and a forecast of 28 million just for the year 2001, plus world-wide acceptance of the standard, DECT is a mature, robust and field-proven platform for cordless communication evolution with an continuous sensible total market growth. More than 200 different DECT products are already available on the market for voice and data.
The DECT standard is designed to be one of the core building blocks for 3rd Generation communications. It will play a central role in the convergence of fixed and mobile communication services. DECT is the most successful digital standard for cordless applications today, and it has to be able to coexist and evolve as the 3rd Generation radio technologies emerge. DECT is the only cordless technology among the IMT-2000 family that is fully available today. DECT will complement other IMT-2000 family members such as UMTS being DECT/UMTS standard already available. DECT can offer data rates up to more than 2 Mbit/s, the maximum data rate planned for UMTS. DECT can thus be a good platform for first implementations of future UMTS applications.

The Evolution
The substantial predicted growth of the penetration of DECT in the world market can be explained by the introduction of new applications such as DPRS (DECT Packet Radio Service for data), use of DECT in local area networks, and the opening of new frequency bands for DECT in markets such as China and Latin America. DECT is ready for next generation communications ready to take its place in an environment of fixed mobile convergence, integration of voice and data, multimedia, internet/intranet services and multi-operator service provision.

The ETSI Project DECT has been responding to the growing demand for the support of data services and the continuous desire to increase available data rates by adding high bit rate modes to DECT, more than 2 Mbit/s are available today and work is going for further improvement. This capability will permit, for example, very fast Internet access and the creation of wireless Local Area Networks based on DECT. The ETSI Project has also completed specification of the DECT Packet Radio Service (DPRS) in support of data applications. Development of the DECT Multimedia Access Profile (DMAP) has been also completed. Mainly targeted at the small office and home markets, this is a selection of DECT services, allowing terminals to provide a fully integrated multimedia service of voice and data.

More information about DECT Technical Committee can be found on
DECT is a trade-mark of ETSI

Digital Video Broadcasting (DVB)

The topic of Digital Video Broadcasting (DVB) is a very broad one. It encompasses not only the transmission and distribution of television programme material in digital format over various media, but also a range of related features designed to exploit the capabilities of the technology.

Market Potential and Expectations
ETSI with the DVB Project has developed a complete family of interrelated television standards for all transmission media - including terrestrial (DVB-T), cable (DVB-C), satellite (DVB-S) and microwave - and at all quality levels (from standard definition through to High Definition, including the Enhanced Definition 16/9 format currently being widely deployed in Europe). The standards also cover a range of tools for added-value services such as pay-per-view, interactive TV, data broadcasting and broadband Internet access.
Interactive TV has been identified as one of the key areas ideally suited to an entirely digital transmission system. To promote interactive cable services, cable modem specifications have been agreed and the technology permits digital TV, data communications and telephony to be offered on the same medium.
Western Europe is leading the world in the deployment of digital television as there are established digital satellite and digital terrestrial services. DVB-S, the DVB satellite standard, is almost universally adopted, even in the United States. DVB-T (Terrestrial) is also gaining ground and is deployed already in 17 countries (15 European member countries, Australia and New Zealand).

The Evolution
Digital technology and the convergence of the various digital media are going to introduce many more options besides the traditional one-to-many form of communication that we understand by "television" today. New services making use of the advanced features of digital technology will present many-to-one, many-to-many and one-to-one communication. In combination with an interactive return channel (using an interface to a mobile phone for example), digital receivers will be able to offer users a variety of enhanced services, from simple interactive quiz shows, to internet over the air, and a mix of television and web-type content. High-quality mobile television reception (unachievable with existing analogue systems) will also be a reality.
The next phase of DVB centres on the impact of digital television and the convergence between telecommunications, computers and broadcasting in the home. Multimedia Home Platform (MHP) provides an open environment for applications and services. Standardization of this area has proved the most ambitious and difficult project for DVB yet, but the rewards for the industry are high.

ETSI Technical Committee BROADCAST
BROADCAST is a joint EBU/CENELEC/ETSI Technical Committee which co-ordinates the drafting of standards in the field of broadcasting and related fields. The committee assesses the work performed within e.g. DVB, WorldDAB and is responsible for broadcast systems (emission-reception combination) for television, radio, data and other services via satellite, cable and terrestrial transmitters. CENELEC is responsible for the standardization of radio and television receivers (TC 203, 206, 209).
More information about ETSI TC BROADCAST can be found on

Global System for Mobile Communications (GSM)

GSM, one of ETSI’s most outstanding successes!

Market Potential and Expectations
GSM‰ is the world’s most widely deployed and fastest growing digital cellular standard. Currently there are almost 650 million GSM subscribers world-wide – more than two thirds of the world’s digital mobile population - and this figure is increasing by four new users per second. GSM covers every continent, being the technology of choice for well over 400 operators in more than 170 countries.
But this is only the beginning of the wireless revolution. The industry predicts that there will be over 1.4 billion GSM customers by the end of 2005. Internet use has grown at an almost parallel exponential rate to GSM subscriptions, fuelling the growth of GSM and its development towards 3rd Generation multimedia services. GSM is leading the way in this evolution, moving far beyond the traditional mobile telephone offering to embrace a whole range of services that provide unrivalled benefits to users, operators and investors alike.

The Evolution
GSM is a ‘living standard’, demonstrating a natural evolution path towards 3rd Generation multimedia services. 1999 saw the introduction of HSCSD (High Speed Circuit Switched Data), marking the first step towards 3rd Generation services. HSCSD delivers the higher transmission speeds demanded by today’s mobile users. As these demands continue to grow, GSM developments via GPRS (General Packet Radio Service) - making it possible to be “always on-line”- and EDGE (Enhanced Data rates for GSM) will continue to answer them.
Ultimately, the Universal Mobile Telecommunications System (UMTS), which is evolved from GSM’s core network, will build on existing GSM investments to add a new tier of high-value mobile multimedia services, voice and data, by integrating a broadband radio interface operating many times faster than that of GSM.
In particular, wireless Internet access is already becoming increasingly popular as users demand access to information wherever they are. The developments in GSM are providing easier and quicker access to the Internet and corporate intranets, allowing business users increased flexibility and mobility.
The Wireless Application Protocol (WAP) delivers Internet based services such as banking, news, and entertainment via a browser adapted for hand-held terminals. The capabilities of Short Message Service (SMS) are also being expanded to allow users to create personalized services that deliver the information they want as they need it. Location services within GSM are emerging and promise fascinating opportunities for users and service providers. GSM has the capabilities to take the wireless world of today to the converged wireless Internet and multimedia communication society of the future.

GSM standards development
Until mid-2000, GSM Mobile standards were developed within the European Telecommunications Standards Institute (ETSI) by its Technical Committee SMG (Special Mobile Group). The mission of SMG was to develop standards for the GSM family of public digital mobile communications systems with a built-in capability for unrestricted world-wide roaming of users and/or terminals between any networks belonging to this family. In June 2000, ETSI transferred the work on the evolution of the GSM radio technology and related issues to the 3rd Generation Partnership Project (3GPP), which it had created in December 1998. As a result of the transfer, ETSI established a new Technical Committee MSG (Mobile Standards Group) to handle the transposition of GSM specifications produced by 3GPP into formal ETSI standards. It also created ETSI Project SCP (Smart Card Platform) to develop generic smart card standards for use by developers of all 2nd and 3rd Generation mobile systems. Work on smart cards specific to GSM and UMTS is being performed in 3GPP.

3GPP is a registered trade- mark of ETSI for the benefit of the 3GPP Partners
UMTS is a trade-mark of by ETSI
GSM‰ is a trade-mark of the GSM Association

3rd Generation Partnership Project (3GPP)

The 3rd Generation Partnership Project (3GPP) is a global standardization initiative created in December 1998. It is defining a technology that forms part of the IMT-2000 family of 3rd Generation mobile systems defined by the International Telecommunication Union (ITU). 3rd Generation systems will give mobile users high speed access to a wide range of multimedia services, wherever they are in the world.
It is thus a globally standardized technology, and is often referred to as UMTS, the Universal Mobile Telecommunication System. It has been designed to permit global roaming with the widest choice of user terminals, and to interoperate with the other 3rd Generation technologies, as well as with 2nd Generation systems such as GSM™. It is compatible with, and will facilitate the evolution of, existing GSM infrastructures, recognizing the huge success of GSM with almost 600 million users worldwide.

A global standardization initiative
The task of 3GPP is to develop a complete set of globally applicable Technical Specifications for a 3rd Generation mobile system based on the evolved GSM core network and an innovative radio interface known as UTRA, the Universal Terrestrial Radio Access, using Wideband Code Division Multiple Access (W-CDMA) technology. In addition, 3GPP is responsible for the continuing evolution and maintenance of the GSM standards.
The Project is based on a concept devised by the European Telecommunications Standards Institute (ETSI), and is a collaborative activity between officially recognized Standards Development Organizations (SDOs), with the participation of other industry groups and individual members.
The 3GPP has no legal status: ownership (including copyright) of the specifications and reports it produces is shared between the partners. The project's output is passed to the participating SDOs for transposition into official standards and reports.

Partnership in 3GPP is open to all national, regional or other SDOs (referred to as Organizational Partners, OPs), irrespective of their geographical location. Currently, 3GPP has six OPs: the Association of Radio Industries and Businesses (ARIB), Japan; China Wireless Telecommunication Standards organization (CWTS); the European Telecommunications Standards Institute (ETSI); Committee T1, USA; the Telecommunications Technology Association (TTA), Korea; the Telecommunication Technology Committee (TTC), Japan.
The OPs may invite Market Representation Partners (MRPs) to participate: these may be any organization from anywhere in the world that can offer market advice to 3GPP. The present MRPs are: the UMTS Forum; the Global Mobile Suppliers Association (GSA); the GSM Association; the Universal Wireless Communications Consortium (UWCC); the IPv6 Forum; the Mobile Wireless Internet Forum (MWIF); 3G.IP; Wireless Multimedia Forum (WMF). Individual Membership is open to companies and organizations within the communications industry who are members of one of the OPs. Over 450 companies are now active in the technical work of 3GPP as Individual Members. Guest and Observer status is also available.

The 3GPP work programme
At the end of its first year, 3GPP had already produced the first series of around 300 specifications and reports in what is called Release 99. These define a complete mobile system, and form the technical basis of the first operational systems. The specifications include UTRA, the radio interface, and these were submitted to the ITU for reference in its Recommendation M.1457 (formerly IMT.RSPC), the IMT-2000 compendium of 3rd Generation terrestrial radio interfaces.
Release 99 was only the start: Release 4 was frozen in March 2001, providing more features and enhancements including preliminary definitions of “IP-Multimedia” networks, which will exploit the benefits of the Internet Protocols, in particular the seamlessness of connection between different networks and different technologies. Release 5 is scheduled for early 2002, providing for full IP-Multimedia capability. Each Release consists of a full set of system specifications, defining an entire mobile system. Further Releases may follow.
More information about 3GPP can be found at

3GPP is a registered trade- mark of ETSI for the benefit of the 3GPP Partners
UMTS is a trade-mark of ETSI
GSM‰ is a trade-mark of the GSM Association

Project MESA (Mobility for Emergency and Safety Applications)

The recently created Project MESA aims within the framework of an international partnership to develop a new revolutionary Mobile Broadband Standard aimed at serving the needs of the Public Protection, Disaster Response and Peacekeeping Sectors. Requirements for mobility in a wireless environment offering data-rates well above current standards have already been identified.

Market Potential and Expectations
One of the key aspects of crisis and disaster management is the effectiveness of frontline medical assistance to injured citizens. The concept of remote patient monitoring is the subject of intense studies in the peacekeeping sectors where the need for a reliable, secure and very high capacity mobile technology has been identified in order to address activities on the scene of incidence.
First aid may be assisted by wireless broadband technology allowing for the remote on-line monitoring of vital medical parameters. In addition two-way voice and video should be streamed onto the patient data to keep the rescue team connected to the remote medical expertise. All this real-time information will have to be accommodated onto a single MESA Carrier in a mobile environment.
Interconnection to one or more of the planned broadband satellite constellations form part of the scope of MESA in order to ensure a stable communication path from remote areas where terrestrial infrastructures may be seized during natural disasters.
It is furthermore evident that new Military Requirements host a vide variety of applications within this class of advanced mobile services, especially in the face of the currently discussed transition of the Armed Forces from the traditional Cold War arsenal to the new “Terminator Force” capabilities. With the success of the NATO applied COTS procurement procedures (Commercial Off-The-Shelf) expectations are that participation in the MESA work will also be sought from this Sector.
Another area of interest in this field is Mobile Robotics. This is also a subject of active study in both the Public Safety and Military sectors and is also depending upon the application of a highly reliable and broadband wireless technology. Robots designed in both micro-and macro scale may be used to assists to rescue of people from hazardous areas, to provide for automated inspection of non-accessible areas, to offer the safe and swift clearing of land mines and assist in the difficult process of resolving terrorist actions.
In terms of bandwidth positioning, The Project MESA specifications will be a complement to both existing and planned broadband wireless standards, on a segmentation scale in terms of narrowband, wideband and broadband.
The combination of mobility and bit rates above 2 Mb/s is a key characteristic of Project MESA.

A Partnership poised for rapid expansion
ETSI and TIA (Telecommunications Industry Association) have agreed to work collaboratively as Organizational Partners for the elaboration of MESA specifications and requirements. The means for this collaborative activity has been provided in the form of a Partnership Project, in this case known as the Public Safety Partnership Project (PSPP), which constitutes the legal and operational framework ensuring a swift progress of results.

Radio Frequencies on the agenda of World Radio Conference (WRC) 2003
The WRC 2000 in Istanbul identified the need to study the requirements for radio spectrum in support of such initiatives as MESA by adopting a resolution inviting the ITU to prepare the matter for decision at WRC 2003, where it now appears on the agenda as agenda item 1.3.

To sign up to participate in this vital activity please visit where also much more information is available.

ETSI Project Powerline Telecommunications (EP PLT)

EP PLT standardises PLC (Powerline Communication) systems. PLC technology uses the existing electricity network for transmission of telecommunication signals.

The obvious advantage of the PLC concept is the ubiquity of the electricity network, which is available in every room, in almost every house in the developed world - denser than today’s existing telephony infrastructure. The areas of developing data transmission solutions via powerlines include outdoor (local loop) and in-house (home networking) solutions.
Members of EP PLT believe that a technology as innovative as PLT offers substantial public benefits in the area of higher bandwidth data services making the internet usable at an affordable price. Low-cost internet access for the subscriber positions Europe in the global e-commerce market. Furthermore, PLC enables greater competition in the provision of local loop services and increases consumer choice. European Commission has identified this need for regulation to favour and encourage both competition between operators as well as the competitiveness in general of European industry.
However, powerlines not only exist outside of building, but also within. The in-house electricity lines can be used for high speed transmission enabling the provision of Home Networking solutions or the in-house distribution of all kind of access signal (e.g. PLC Access, DSL, etc.).

PLC technology provides connection and data transfer over existing electricity networks ("power lines") and currently allows transmission speeds of 2 Mbps and beyond! Extensive field trials by members of EP PLT during the last 2 years, both for PLC access and PLC in-house systems, all over the world showed very encouraging results.

Added Value
Deregulation in telecommunications allows new market entrants to provide telecommunications services along electricity networks. Proprietary technology is being developed which allows telecommunications services to be realised over the existing public and private mains power networks. EP PLT will develop high quality standards and specifications to provide telecommunications services via the existing public and private mains power networks.
Deregulation in the power supply sector increases the demand for specific energy distribution related information systems as e.g. load control mechanisms, reading power meters remotely, and many more. These value added services can be realised cost effectively via PLC technology.
Home-automation is another application for PLC in-house systems.

Evolution and Perspectives
EP PLT will progress the necessary standards and specifications to cover the provision of voice and data services over the mains power transmission and distribution network and/or in-building electricity wiring. The standards will be developed in sufficient detail to allow interoperability between equipment from different manufacturers and co-existence of multiple PLC systems within the same environment. Harmonised Standards will be developed to allow presumption of conformity with the relevant EU/EC Directives. EP PLT uses the principle of phased development of standards in a timely fashion in support of phased roll out. Furthermore EP PLT takes care about technical requirements to avoid interference with users of the radio spectrum.

Beside ETSI internal liaisons with e.g. ETSI ERM, ETSI PLT has liaisons with the PLCforum and Cenelec SC205A to establish a fruitful co-operation with these two groups attended by PLC experts.

More information about ETSI EP PLT can be found on

Terrestrial Trunked Radio (TETRA)

TETRA is the ETSI standard for digital land mobile radio communications systems designed to meet the most demanding requirements of professional mobile radio users (PMR) and public access radio (PAMR) users and operators.

The Evolution
TETRA has been developed to ensure that the standard will support the mobile communication needs of both emergency services and civil users both in Europe and world-wide. Public safety and security services are among the major users of TETRA because this is the only digital mobile communication standard that can provide the benefits of true multi-sourcing combined with a technology capable to meet their most exacting needs.
Several services demanded by the professional users differentiate TETRA from the public mobile communication systems. These, to mention just a few, include all-informed communications with rapid call set-up for the closed-user-groups, direct terminal-to-terminal Mode (DMO) for communication outside the network, end-to-end encryption, pre-emptive Emergency call that allows ‘queue jumping’ in case of network congestion and the simultaneous voice and data service.
TETRA's open interfaces ensure interoperability with the existing standard public networks PTN and ISDN. TETRA also provides a wide range of data services, ranging form Status and short data messaging to the circuit mode and IP packet data, and is compatible with the Wireless Application Protocol architecture (WAP).

Market Potential and Future Road Map
Today, potential users of the TETRA system continue to identify new areas for standardization. Currently under consideration as part of the ‘Release 2’ work programme are various enhancements to the standard. In addition to enhancing data rates ten-fold to meet the increased need for non-voice applications, the Release 2 development includes range extension (for use by helicopters & light aircrafts, and for use in the maritime situations); improving interworking with public cellular networks; improving the air interface performance and adding alternative voice codecs.
ETSI Project TETRA has today over 150 representatives (from both the CEPT countries and beyond) involved in the various technical Working Groups, with support from the TETRA MoU Association providing further expertise in specialist areas and in the marketing and the promotion of the standard world-wide. With TETRA contracts dominating the mobile communication market in Europe the activity is now extended world-wide. Several contacts have been won in Russia and China following recent adoption of TETRA as the national standard for trunked mobile radio communication. TETRA contacts have been won all over the world with the exception of North America where the MoU have been very active to have TETRA adopted by the US standardisation bodies APCO and TIA. In addition to all the traditional PMR/ PAMR customers, which include the emergency services, Public Access Network Operators, Transportation, Utilities and Business & Industry users, TETRA is being adopted by the military for their non-tactical applications.

More information about ETSI Project TETRA and the TETRA MoU can be found on and

(Telecommunications and Internet Protocol Harmonization over Networks)

The original objective of ETSI Project TIPHON™ was to bring together the interests of existing and evolving communications networks with those of the Information Society, exemplified by the Internet, thereby forming a bridge between the traditional telecommunications and IP worlds.
The standards market has evolved so much since TIPHON’s inception, that the question is no longer limited to the simple problem of bridging “old switched networks” to “modern packet networks”, but also to the interconnection of networks implementing differing VoIP technologies, all targeting issues of multi-service packet networks, and each developed by major standardization organizations such as the ITU and IETF. This is the challenge that TIPHON has taken up.

TIPHON addresses:
The service-level interworking between traditional Switched Circuit Networks (SCNs)' especially those served by PSTN, ISDN or GSM networks, and emerging Next Generation Networks (NGN).
The difficult, yet extremely important, area of multi-network interworking, across multiple administrative and technology domains.
The challenge of providing public communications services in a heterogeneous environment, which TIPHON addresses by defining a generic means of creating services that is independent of any specific underlying network technology – regardless of whether it is circuit or packet based.
In doing this, TIPHON takes into consideration a broad and diverse set of technical, commercial and legal requirements including quality of service, numbering, billing, mobility, security, emergency services, and lawful interception, as well as providing an innovative approach to communications standardisation itself.
Among the many specifications TIPHON has developed are:
An abstract architecture, which can serve both the migration to, and implementation of, the infrastructure for an all-packet solution.
A meta protocol, used to generate protocol mappings and profiles for industry standards associated with any given communications network technology (including H.323, SIP, H.248/MEGACO)
A set of documents related to Quality of Service aiming at improving the quality of VoIP speech, including: QoS general aspects, QoS Signalling, network design guide, QoS measurements, and others.
Advanced Test Suites (ATS), Protocol Implementation Conformance Statements (PICS), and Test Purposes (TP) documents for conformance testing of each protocol profile addressed (SIP, H.225, H.245; H.248, etc.).

Benefits of Project TIPHON
EP TIPHON brings a unique perspective to IP telephony standardization efforts: a focus on scalability, reliability, and performance requirements for worldwide deployment by major national and international carriers. It develops standards that enable:
Convergence: Bringing IP and PSTN/ISDN network architectures together for voice services
Replacement: Allowing for migration to and replacement of PSTN/ISDN by IP
Improvement: Specification of QoS Service Levels, together with a range of new revenue-generating service offerings (as opposed to supplementary services which extend basic voice telephony)
Ultimately, the widespread deployment of IP-based telephony will give rise to a wave of new applications and services that will fundamentally change the way people use technology to communicate.

TIPHON Release 3
"TIPHON Release 3" offers new standards, profiles and test specifications which allow network operators and service providers, for the first time, to offer an integrated standards-based range of telephony services over multi-protocol packet- and circuit-switched networks.
TIPHON Release 3 implementations draw together industry protocols such as H.323, SIP, Megaco/H.248 and BICC to enable services to be offered in a coherent way between multiple service providers and across transport networks utilizing differing technologies.
All TIPHON Release 3 documents are available at:

Next meeting
TIPHON meets 4 to 6 times a year, and the next TIPHON meeting will take place from 11-15 March 2002 at the ETSI headquarters location in Sophia Antipolis, France.
TIPHON‰ is a trademark of ETSI

Universal Mobile Telecommunications System (UMTS)
UMTS is one of the major new 3G mobile communications systems being developed within the framework which has been defined by the ITU and known as IMT-2000. As such it is standardized globally in partnership with standards bodies around the globe. UMTS will permit global roaming and multimedia access with a wide choice of user terminals.

Market Potential and Expectation
Allowing operators to offer mass-market mobile multimedia services, UMTS provides a route for the information technology and content industries to deliver new, innovative, non-voice based services.
UMTS is a future-looking technology but one which recognizes and builds upon the massive investments that have already been made in today's 2nd generation systems, notably GSM‰. It takes a fresh approach to optimal use of valuable radio spectrum, achieving greater spectrum efficiency and capacity compared to today’s 2nd generation systems.
Thanks to UMTS, mobile users will have access to pictures, graphics, video communications and other wide-band information - as well as voice and data. UMTS will build on and extend the capability of today’s mobile technologies (like digital cellular and cordless) by providing increased capacity, data capability and a far greater range of services using an innovative radio access scheme and an enhanced, evolving core network.
UMTS will enable tomorrow’s wireless Information Society, delivering high-value broadband information, commerce and entertainment services to mobile users via fixed, wireless and satellite networks. It will speed convergence between telecommunications, IT, media and content industries to deliver new services and create fresh revenue-generating opportunities. UMTS will offer low-cost, high-capacity mobile communication with global roaming and other advanced capabilities.

The Evolution
The world market for terrestrial mobile services based on GSM alone will be over 1.4 billion users by the end of 2005. (Source: GSM Association)
The launch of UMTS services from 2001 onwards will see the evolution of a new, "open" communications universe, with players from many sectors (including providers of information and entertainment services) coming together harmoniously to deliver new communications services, characterized by mobility and advanced multimedia capabilities. The successful deployment of UMTS will require new technologies, new partnerships and the addressing of many commercial and regulatory issues.

The 3rd Generation Partnership Project, 3GPP
Development of the specifications for UMTS is being carried out by the 3rd Generation Partnership Project, 3GPP, collaboration of standards development organizations, industry associations and over 450 individual member companies. ETSI was a founding partner of 3GPP, which was created in December 1998. The resulting UMTS specifications cover mobile communications systems that deliver seamless customised multi-media services from a converged network of fixed, cellular, wireless and satellite components.
The specifications produced by 3GPP may be given formal standards status by each of the participating standards development organizations, including ETSI, through a process of transposition. Each standards development organization is at liberty to apply its own procedures for transposition: in the case of ETSI, it is a simple and rapid adoption and publication of the specifications.
More information about 3GPP can be found on

3GPP is a registered trade- mark of ETSI for the benefit of the 3GPP Partners
UMTS is a trade-mark of ETSI
GSM is a trade-mark of the GSM Association

Very Small Aperture Terminal

It describes a small terminal that can be used for one-way and/or interactive communications via satellite. VSAT networks offer value-added satellite-based services capable of supporting the Internet, data, video, LAN, voice/fax communications, and can provide powerful, dependable private and public network communications solutions.

Market Potential and Expectations
The development of new communications technologies, such as Internet and its associated applications, has given rise to a significant demand for access to broadband data communications service. The alternative to terrestrial technologies - which is unable to keep up with demand - is wireless broadband provided by satellites. VSAT are distance-insensitive and terrain-indifferent, which allow provision of high-speed access to homes and commercial enterprises.
It appears that despite the fact that corporate enterprise networking remains a key market segment for VSAT operators and manufacturers; the Internet is proving to be a central point in the expansion of the technology and its growth into new markets.
VSAT markets are vast. They include, for instance, Corporate, Industrial, Government, Rural/Agricultural, Marine, Aeronautical and Global Consumer (in convenience stores or cinemas). According to COMSYS analysis, a key market segment that VSAT companies should be targeting is Small-to-Medium sized enterprises (SMEs). COMSYS estimates that the SME market is a high-potential market with millions of sites.
The VSAT market is evolving. Globalization, hybridization and convergence are well underway. And new opportunities are emerging such as turnkey service-based business; increased concentration on solutions rather than connectivity and bandwidth; and the inclusion of VSAT as an essential part of comprehensive telecom portfolios.

Performance and Added Value
The benefits of VSAT technology are being realized in many sectors, both private and public. From banks to administrations, schools, hospitals, and rural telecommunications, VSATs are being seized upon to elevate economic, educational and health standards. They are becoming increasingly popular, because they are a single, flexible communications platform that can be installed quickly and cost effectively to provide telecoms solutions for consumers, governments and corporations.
Another major point in favour of VSATs is the ease of rolling out and managing the network. VSATs generate flexibility, particularly where new VSAT sites need to be added, or existing sites need to be moved or removed from the network. Installation is carried out independently of the local telephone operator, again reducing the possibility of error and delay.
They have been in use for more than 10 years and, with more than 500,000 systems operating in more than 120 countries, VSATs are a mature and proven technology

Digital Subscriber Line (xDSL)
Digital Subscriber Line systems are modem systems designed to operate on copper telephone wires intended originally for voice-band communications.

Market Potential and Expectation
The family of DSL technologies, typically denoted as xDSL, includes High bit rate Digital Subscriber Line (HDSL), Asymmetric Digital Subscriber Line (ADSL), Single line high speed Digital Subscriber Line (SDSL), and Very high speed Digital Subscriber Line (VDSL). xDSL modem technology permits ultra-fast, cost-effective, and constant access to the Internet over ordinary copper telephone lines and allows to squeeze up to 99 percent more capacity from a phone line.
xDSL provides speeds up to 8 Mbit/s (up to 52 Mbit/s with VDSL) downstream and up to 1 Mbit/s upstream (up to 2.3 Mbit/s for SDSL). High transmission speed is now considered crucial to Internet applications such as interactive multimedia. Integrated Service Digital Network (ISDN) lines will prevail for the next few years to come. However, it is expected that DSL will take over as the most popular method of accessing the Internet at high-speed.
The main advantage of these technologies is to allow the reuse of the telephone cable plant for high-speed digital connections, without requiring the installation of new cabling. It offers traditional local telephony network operators a means to offer their customers high speed Internet connections, and compete with the alternative technologies, such as cable modems, wireless Internet access and satellite Internet access.
World-wide, projections show that the installed DSL base will surpass 1 million lines by the end of this year.

The Evolution
The market predictions are high. In the US it is expected that there will be 1 million lines in year 2000 (source: Telechoice). It is likely that the deployment of ISDN will not be pushed forward, and that ADSL and afterwards VDSL will be deployed. In both Europe and US, the potential market is huge, and it is expected to install several millions xDSL lines in the near future.
HDSL is already commonly used for GSM‰ base station links and many operators have now launched ADSL as a commercial service.

ETSI Technical Committee Transmission and Multiplexing
ETSI has been intensively involved in the definition of ISDN and ADSL, specifying systems that fit the specific European needs and still ensuring the possibility of economies of scale due to the commonality of core systems. ETSI through its TC TM6 on Access Networks has now become a leading standardization body in xDSL, having brought significant advances in the definition of VDSL and SDSL systems, and brings together experts coming from throughout the world. Its influence is recognized and its input appreciated in the other xDSL related bodies.

More information about ETSI TM6 Technical Committee can be found on